Correlation between the international scale (IS) values and the log₁₀ reductions in BCR-ABL1 levels in the chronic myeloid leukemia patients at 3 months after imatinib mesylate therapy. Abscissa indicates IS values obtained by the BCR-ABL Mbcr IS-MMR Dx kit. Ordinate indicates the log10 reductions in BCR-ABL1 levels from baseline obtained by the LightCycler t(9;22) quantification kit.